tools: lint for object literal spacing

There has been occasional nits for spacing in object literals in PRs but the project does not lint for it and it is not always handled consistently in the existing code, even on adjacent lines of a file. This change enables a linting rule requiring no space between the key and the colon, and requiring at least one space (but allowing for more so property values can be lined up if desired) between the colon and the value. This appears to be the most common style used in the current code base. Example code the complies with lint rule: myObj = { foo: 'bar' }; Examples that do not comply with the lint rule: myObj = { foo : 'bar' }; myObj = { foo:'bar' }; PR-URL: #6592 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Brian White <mscdex@mscdex.net>
nodejs · MylesBorins · Jul 12, 2016 · May 1, 2016 · Nov 14, 2015 · Apr 30, 2016
commit 642f21402db905366384e1ec19cca1f0c5cbee16
diff --git a/.eslintrc b/.eslintrc
@@ -57,6 +57,7 @@ rules:
   comma-spacing: 2
   eol-last: 2
   indent: [2, 2, {SwitchCase: 1}]
+  key-spacing: [2, {mode: "minimum"}]
   keyword-spacing: 2
   max-len: [2, 80, 2]
   new-parens: 2

diff --git a/lib/_http_server.js b/lib/_http_server.js
@@ -16,67 +16,67 @@ const httpSocketSetup = common.httpSocketSetup;
 const OutgoingMessage = require('_http_outgoing').OutgoingMessage;
 
 const STATUS_CODES = exports.STATUS_CODES = {
-  100 : 'Continue',
-  101 : 'Switching Protocols',
-  102 : 'Processing',                 // RFC 2518, obsoleted by RFC 4918
-  200 : 'OK',
-  201 : 'Created',
-  202 : 'Accepted',
-  203 : 'Non-Authoritative Information',
-  204 : 'No Content',
-  205 : 'Reset Content',
-  206 : 'Partial Content',
-  207 : 'Multi-Status',               // RFC 4918
-  208 : 'Already Reported',
-  226 : 'IM Used',
-  300 : 'Multiple Choices',
-  301 : 'Moved Permanently',
-  302 : 'Found',
-  303 : 'See Other',
-  304 : 'Not Modified',
-  305 : 'Use Proxy',
-  307 : 'Temporary Redirect',
-  308 : 'Permanent Redirect',         // RFC 7238
-  400 : 'Bad Request',
-  401 : 'Unauthorized',
-  402 : 'Payment Required',
-  403 : 'Forbidden',
-  404 : 'Not Found',
-  405 : 'Method Not Allowed',
-  406 : 'Not Acceptable',
-  407 : 'Proxy Authentication Required',
-  408 : 'Request Timeout',
-  409 : 'Conflict',
-  410 : 'Gone',
-  411 : 'Length Required',
-  412 : 'Precondition Failed',
-  413 : 'Payload Too Large',
-  414 : 'URI Too Long',
-  415 : 'Unsupported Media Type',
-  416 : 'Range Not Satisfiable',
-  417 : 'Expectation Failed',
-  418 : 'I\'m a teapot',              // RFC 2324
-  421 : 'Misdirected Request',
-  422 : 'Unprocessable Entity',       // RFC 4918
-  423 : 'Locked',                     // RFC 4918
-  424 : 'Failed Dependency',          // RFC 4918
-  425 : 'Unordered Collection',       // RFC 4918
-  426 : 'Upgrade Required',           // RFC 2817
-  428 : 'Precondition Required',      // RFC 6585
-  429 : 'Too Many Requests',          // RFC 6585
-  431 : 'Request Header Fields Too Large', // RFC 6585
-  500 : 'Internal Server Error',
-  501 : 'Not Implemented',
-  502 : 'Bad Gateway',
-  503 : 'Service Unavailable',
-  504 : 'Gateway Timeout',
-  505 : 'HTTP Version Not Supported',
-  506 : 'Variant Also Negotiates',    // RFC 2295
-  507 : 'Insufficient Storage',       // RFC 4918
-  508 : 'Loop Detected',
-  509 : 'Bandwidth Limit Exceeded',
-  510 : 'Not Extended',               // RFC 2774
-  511 : 'Network Authentication Required' // RFC 6585
+  100: 'Continue',
+  101: 'Switching Protocols',
+  102: 'Processing',                 // RFC 2518, obsoleted by RFC 4918
+  200: 'OK',
+  201: 'Created',
+  202: 'Accepted',
+  203: 'Non-Authoritative Information',
+  204: 'No Content',
+  205: 'Reset Content',
+  206: 'Partial Content',
+  207: 'Multi-Status',               // RFC 4918
+  208: 'Already Reported',
+  226: 'IM Used',
+  300: 'Multiple Choices',
+  301: 'Moved Permanently',
+  302: 'Found',
+  303: 'See Other',
+  304: 'Not Modified',
+  305: 'Use Proxy',
+  307: 'Temporary Redirect',
+  308: 'Permanent Redirect',         // RFC 7238
+  400: 'Bad Request',
+  401: 'Unauthorized',
+  402: 'Payment Required',
+  403: 'Forbidden',
+  404: 'Not Found',
+  405: 'Method Not Allowed',
+  406: 'Not Acceptable',
+  407: 'Proxy Authentication Required',
+  408: 'Request Timeout',
+  409: 'Conflict',
+  410: 'Gone',
+  411: 'Length Required',
+  412: 'Precondition Failed',
+  413: 'Payload Too Large',
+  414: 'URI Too Long',
+  415: 'Unsupported Media Type',
+  416: 'Range Not Satisfiable',
+  417: 'Expectation Failed',
+  418: 'I\'m a teapot',              // RFC 2324
+  421: 'Misdirected Request',
+  422: 'Unprocessable Entity',       // RFC 4918
+  423: 'Locked',                     // RFC 4918
+  424: 'Failed Dependency',          // RFC 4918
+  425: 'Unordered Collection',       // RFC 4918
+  426: 'Upgrade Required',           // RFC 2817
+  428: 'Precondition Required',      // RFC 6585
+  429: 'Too Many Requests',          // RFC 6585
+  431: 'Request Header Fields Too Large', // RFC 6585
+  500: 'Internal Server Error',
+  501: 'Not Implemented',
+  502: 'Bad Gateway',
+  503: 'Service Unavailable',
+  504: 'Gateway Timeout',
+  505: 'HTTP Version Not Supported',
+  506: 'Variant Also Negotiates',    // RFC 2295
+  507: 'Insufficient Storage',       // RFC 4918
+  508: 'Loop Detected',
+  509: 'Bandwidth Limit Exceeded',
+  510: 'Not Extended',               // RFC 2774
+  511: 'Network Authentication Required' // RFC 6585
 };
 
 const kOnExecute = HTTPParser.kOnExecute | 0;

diff --git a/lib/util.js b/lib/util.js
@@ -147,19 +147,19 @@ exports.inspect = inspect;
 
 // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
 inspect.colors = {
-  'bold' : [1, 22],
-  'italic' : [3, 23],
-  'underline' : [4, 24],
-  'inverse' : [7, 27],
-  'white' : [37, 39],
-  'grey' : [90, 39],
-  'black' : [30, 39],
-  'blue' : [34, 39],
-  'cyan' : [36, 39],
-  'green' : [32, 39],
-  'magenta' : [35, 39],
-  'red' : [31, 39],
-  'yellow' : [33, 39]
+  'bold': [1, 22],
+  'italic': [3, 23],
+  'underline': [4, 24],
+  'inverse': [7, 27],
+  'white': [37, 39],
+  'grey': [90, 39],
+  'black': [30, 39],
+  'blue': [34, 39],
+  'cyan': [36, 39],
+  'green': [32, 39],
+  'magenta': [35, 39],
+  'red': [31, 39],
+  'yellow': [33, 39]
 };
 
 // Don't use 'blue' not visible on cmd.exe

diff --git a/test/doctool/test-doctool-json.js b/test/doctool/test-doctool-json.js
@@ -17,7 +17,7 @@ var testData = [
       'source': 'foo',
       'modules': [ { 'textRaw': 'Sample Markdown',
         'name': 'sample_markdown',
-        'modules': [ { 'textRaw':'Seussian Rhymes',
+        'modules': [ { 'textRaw': 'Seussian Rhymes',
           'name': 'seussian_rhymes',
           'desc': '<ol>\n<li>fish</li>\n<li><p>fish</p>\n</li>\n<li>' +
                   '<p>Red fish</p>\n</li>\n<li>Blue fish</li>\n</ol>\n',
@@ -32,7 +32,7 @@ var testData = [
   {
     'file': common.fixturesDir + '/order_of_end_tags_5873.md',
     'json': {
-      'source':'foo',
+      'source': 'foo',
       'modules': [ {
         'textRaw': 'Title',
         'name': 'title',
@@ -41,8 +41,8 @@ var testData = [
           'name': 'subsection',
           'classMethods': [ {
             'textRaw': 'Class Method: Buffer.from(array)',
-            'type':'classMethod',
-            'name':'from',
+            'type': 'classMethod',
+            'name': 'from',
             'signatures': [ {
               'params': [ {
                 'textRaw': '`array` {Array} ',
@@ -51,7 +51,7 @@ var testData = [
               } ]
             },
               {
-                'params' : [ {
+                'params': [ {
                   'name': 'array'
                 } ]
               }

diff --git a/test/parallel/test-console.js b/test/parallel/test-console.js
@@ -37,8 +37,8 @@ console.log(custom_inspect);
 // test console.dir()
 console.dir(custom_inspect);
 console.dir(custom_inspect, { showHidden: false });
-console.dir({ foo : { bar : { baz : true } } }, { depth: 0 });
-console.dir({ foo : { bar : { baz : true } } }, { depth: 1 });
+console.dir({ foo: { bar: { baz: true } } }, { depth: 0 });
+console.dir({ foo: { bar: { baz: true } } }, { depth: 1 });
 
 // test console.trace()
 console.trace('This is a %j %d', { formatted: 'trace' }, 10, 'foo');

diff --git a/test/parallel/test-crypto-binary-default.js b/test/parallel/test-crypto-binary-default.js
@@ -30,19 +30,19 @@ var rsaKeyPem = fs.readFileSync(common.fixturesDir + '/test_rsa_privkey.pem',
 
 // PFX tests
 assert.doesNotThrow(function() {
-  tls.createSecureContext({pfx:certPfx, passphrase:'sample'});
+  tls.createSecureContext({pfx: certPfx, passphrase: 'sample'});
 });
 
 assert.throws(function() {
-  tls.createSecureContext({pfx:certPfx});
+  tls.createSecureContext({pfx: certPfx});
 }, 'mac verify failure');
 
 assert.throws(function() {
-  tls.createSecureContext({pfx:certPfx, passphrase:'test'});
+  tls.createSecureContext({pfx: certPfx, passphrase: 'test'});
 }, 'mac verify failure');
 
 assert.throws(function() {
-  tls.createSecureContext({pfx:'sample', passphrase:'test'});
+  tls.createSecureContext({pfx: 'sample', passphrase: 'test'});
 }, 'not enough data');
 
 // Test HMAC

diff --git a/test/parallel/test-crypto.js b/test/parallel/test-crypto.js
@@ -32,19 +32,19 @@ assert.throws(function() {
 
 // PFX tests
 assert.doesNotThrow(function() {
-  tls.createSecureContext({pfx:certPfx, passphrase:'sample'});
+  tls.createSecureContext({pfx: certPfx, passphrase: 'sample'});
 });
 
 assert.throws(function() {
-  tls.createSecureContext({pfx:certPfx});
+  tls.createSecureContext({pfx: certPfx});
 }, 'mac verify failure');
 
 assert.throws(function() {
-  tls.createSecureContext({pfx:certPfx, passphrase:'test'});
+  tls.createSecureContext({pfx: certPfx, passphrase: 'test'});
 }, 'mac verify failure');
 
 assert.throws(function() {
-  tls.createSecureContext({pfx:'sample', passphrase:'test'});
+  tls.createSecureContext({pfx: 'sample', passphrase: 'test'});
 }, 'not enough data');
 
 

diff --git a/test/parallel/test-domain-http-server.js b/test/parallel/test-domain-http-server.js
@@ -20,7 +20,7 @@ var server = http.createServer(function(req, res) {
     serverCaught++;
     console.log('horray! got a server error', er);
     // try to send a 500.  If that fails, oh well.
-    res.writeHead(500, {'content-type':'text/plain'});
+    res.writeHead(500, {'content-type': 'text/plain'});
     res.end(er.stack || er.message || 'Unknown error');
   });
 

diff --git a/test/parallel/test-domain-top-level-error-handler-throw.js b/test/parallel/test-domain-top-level-error-handler-throw.js
@@ -29,7 +29,7 @@ if (process.argv[2] === 'child') {
   var fork = require('child_process').fork;
   var assert = require('assert');
 
-  var child = fork(process.argv[1], ['child'], {silent:true});
+  var child = fork(process.argv[1], ['child'], {silent: true});
   var stderrOutput = '';
   if (child) {
     child.stderr.on('data', function onStderrData(data) {

diff --git a/test/parallel/test-http-chunk-problem.js b/test/parallel/test-http-chunk-problem.js
@@ -11,7 +11,7 @@ if (process.argv[2] === 'request') {
   const http = require('http');
   const options = {
     port: common.PORT,
-    path : '/'
+    path: '/'
   };
 
   http.get(options, (res) => {

diff --git a/test/parallel/test-http-client-pipe-end.js b/test/parallel/test-http-client-pipe-end.js
@@ -18,7 +18,7 @@ common.refreshTmpDir();
 server.listen(common.PIPE, function() {
   var req = http.request({
     socketPath: common.PIPE,
-    headers: {'Content-Length':'1'},
+    headers: {'Content-Length': '1'},
     method: 'POST',
     path: '/'
   });

diff --git a/test/parallel/test-http-client-reject-chunked-with-content-length.js b/test/parallel/test-http-client-reject-chunked-with-content-length.js
@@ -17,7 +17,7 @@ server.listen(common.PORT, () => {
   // The callback should not be called because the server is sending
   // both a Content-Length header and a Transfer-Encoding: chunked
   // header, which is a violation of the HTTP spec.
-  const req = http.get({port:common.PORT}, (res) => {
+  const req = http.get({port: common.PORT}, (res) => {
     assert.fail(null, null, 'callback should not be called');
   });
   req.on('error', common.mustCall((err) => {

diff --git a/test/parallel/test-http-client-reject-cr-no-lf.js b/test/parallel/test-http-client-reject-cr-no-lf.js
@@ -16,7 +16,7 @@ const server = net.createServer((socket) => {
 server.listen(common.PORT, () => {
   // The callback should not be called because the server is sending a
   // header field that ends only in \r with no following \n
-  const req = http.get({port:common.PORT}, (res) => {
+  const req = http.get({port: common.PORT}, (res) => {
     assert.fail(null, null, 'callback should not be called');
   });
   req.on('error', common.mustCall((err) => {

diff --git a/test/parallel/test-http-client-response-domain.js b/test/parallel/test-http-client-response-domain.js
@@ -34,7 +34,7 @@ function test() {
 
   var req = http.get({
     socketPath: common.PIPE,
-    headers: {'Content-Length':'1'},
+    headers: {'Content-Length': '1'},
     method: 'POST',
     path: '/'
   });

diff --git a/test/parallel/test-http-client-timeout-with-data.js b/test/parallel/test-http-client-timeout-with-data.js
@@ -19,7 +19,7 @@ const options = {
 };
 
 const server = http.createServer(function(req, res) {
-  res.writeHead(200, {'Content-Length':'2'});
+  res.writeHead(200, {'Content-Length': '2'});
   res.write('*');
   setTimeout(function() { res.end('*'); }, common.platformTimeout(100));
 });

diff --git a/test/parallel/test-http-expect-continue.js b/test/parallel/test-http-expect-continue.js
@@ -13,8 +13,8 @@ function handler(req, res) {
   assert.equal(sent_continue, true, 'Full response sent before 100 Continue');
   console.error('Server sending full response...');
   res.writeHead(200, {
-    'Content-Type' : 'text/plain',
-    'ABCD' : '1'
+    'Content-Type': 'text/plain',
+    'ABCD': '1'
   });
   res.end(test_res_body);
 }

diff --git a/test/parallel/test-http-remove-header-stays-removed.js b/test/parallel/test-http-remove-header-stays-removed.js
@@ -30,7 +30,7 @@ process.on('exit', function() {
 server.listen(common.PORT, function() {
   http.get({ port: common.PORT }, function(res) {
     assert.equal(200, res.statusCode);
-    assert.deepEqual(res.headers, { date : 'coffee o clock' });
+    assert.deepStrictEqual(res.headers, { date: 'coffee o clock' });
 
     res.setEncoding('ascii');
     res.on('data', function(chunk) {

diff --git a/test/parallel/test-http-response-multi-content-length.js b/test/parallel/test-http-response-multi-content-length.js
@@ -33,7 +33,7 @@ server.listen(common.PORT, common.mustCall(() => {
     // case, the error handler must be called because the client
     // is not allowed to accept multiple content-length headers.
     http.get(
-      {port:common.PORT, headers:{'x-num': n}},
+      {port: common.PORT, headers: {'x-num': n}},
       (res) => {
         assert(false, 'client allowed multiple content-length headers.');
       }

diff --git a/test/parallel/test-http-response-splitting.js b/test/parallel/test-http-response-splitting.js
@@ -29,12 +29,12 @@ const server = http.createServer((req, res) => {
       break;
     case 1:
       assert.throws(common.mustCall(() => {
-        res.writeHead(200, {'foo' : x});
+        res.writeHead(200, {'foo': x});
       }));
       break;
     case 2:
       assert.throws(common.mustCall(() => {
-        res.writeHead(200, {'foo' : y});
+        res.writeHead(200, {'foo': y});
       }));
       break;
     default:

diff --git a/test/parallel/test-http-server-multiheaders.js b/test/parallel/test-http-server-multiheaders.js
@@ -18,7 +18,7 @@ var srv = http.createServer(function(req, res) {
   assert.equal(req.headers['sec-websocket-extensions'], 'foo; 1, bar; 2, baz');
   assert.equal(req.headers['constructor'], 'foo, bar, baz');
 
-  res.writeHead(200, {'Content-Type' : 'text/plain'});
+  res.writeHead(200, {'Content-Type': 'text/plain'});
   res.end('EOF');
 
   srv.close();